We believe that names have a powerful influence on the experiments we do and the way in
which we think. For this reason, and in the light of new evidence about the function and …

Comparative studies suggest that at least some bird species have evolved mental skills similar
to those found in humans and apes. This is indicated by feats such as tool use, episodic-…

Comparative studies on brain asymmetry date back to the 19th century but then largely
disappeared due to the assumption that lateralization is uniquely human. Since the reemergence …

Assumptions on the neural basis of cognition usually focus on cortical mechanisms. Birds
have no cortex, but recent studies in parrots and corvids show that their cognitive skills are on …

The aim of this study was (a) to show that different measures of spatial cognition are modulated
by the menstrual cycle and (b) to analyze which steroid is responsible for these cognitive …

The biological mechanisms underlying long-term partner bonds in humans are unclear. The
evolutionarily conserved neuropeptide oxytocin (OXT) is associated with the formation of …

Little is known about the hormonal effects of puberty on the anatomy of the developing
human brain. In a voxel-based morphometry study, sex-related differences in gray matter (GM) …

There is considerable debate about whether population-level asymmetries in limb preferences
are uniquely human or are a common feature among vertebrates. In the present article …

In humans, interpersonal romantic attraction and the subsequent development of monogamous
pair-bonds is substantially predicted by influential impressions formed during first …

A preference in humans for turning the head to the right, rather than to the left, during the final
weeks of gestation and for the first six months after birth 1 , 2 constitutes one of the earliest …